Axle-lubricator



{No Modei.)

E. S. COYLE.

. AXLE LUBRIGATOR. No. 409,018. Patented; Aug. 13, 1889 UNITED STATES PATENT ()EFIcE.

EDWARD S. COYLE, OF BALLSTON, NEW YORK.

' AXLE-LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 409,018, dated August 13, 1889.

Application filed February 16, 1888- Serial No. 264,287. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD S. CoYLE, of Ballston, in the county of Saratoga and State of New York, have invented certain new and useful Improvements in Axles of Vagons, Carriages, &c.; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will en able others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in axle spindles and lubricat-ors; and its objects are, first, the protection of the arm of the axle from breaking or wearing out by surrounding it with a steel thimble, on and around which the hub of the wheel is adjusted and turns, as will be more fully described hereinafter; second, to produce a wheel-lubricator by reducing the size of the arm of the axle, over and around which reduced portion the thimble is adjusted, thus forming a chamber to receive, hold, and distribute oil over the external surface of the thimble, thereby furnishing a lubricated surface for the hub of the wheel.

The accompanying drawing represents a vertical longitudinal section of an axle embodyin g my invention.

A represents the axle, which is reduced in size, as shown at I, and provided with the shoulder S. Back of this shoulder the axle is of the ordinary construction, with the exception of the oil passage or opening F, and which is made the entire length from one side of the vehicle to the other from one solid bar of iron or steel. That portion of the arm of the axle just in front of the shoulder S is provided with screw-threads, and its outer enlarged end J is likewise screw-threaded.

D represents a thimble, which is cylindrical in form and tapered slightly towardits outer end. The inner surface of this thimble D is screw-threaded at its inner and outer extremities for engaging with the screw-threads upon the inner and outer ends of the axle-arm.

The thimble D is placed around the arm of the axle, as shown, and turned until it firmly abuts against the shoulder S, when it is in its proper position. For the purpose of holding the thimble in place, the nut O is provided, which screws upon the outer end of the axle-arm. The thimble D is made shorter than the arm of the axle, so that when it is screwed in place the arm projects beyond the thimble to admit the nut C to be placed thereon.

By reducing the arm of the axle at I, as shown, an oil-reservoir G is provided. Oil is supplied to this reservoir through the supply opening or tube F, which is made in the inner end of the arm of the axle and extending rearward and having its exit just back of the shoulder S. The exit of the tube or opening F is closed by means of the screw B after the chamber has been supplied with oil. The thimble D is provided with two or more apertures E, which supply oil to the external surface of the thimble and keep the hub of the wheel always lubricated. \Vhen the thimble is screwed in position, the apertures E are preferably in a line directly over the supplytube F.

WVhen the thimbleD becomes worn by constant use, it can be removed without disturbing the axle A or its arm, which it covers and protects, and replaced by another at a very slight expense.

From the above construction it will be ap parent that the thimble D accomplishes two purposes-first, a protection for the arm of the axle from wear and breakage, and, secondly, the formation of a self-lubricator.

Having thus described my invention, I claim 1. The combination of the axle provided with the shoulder S and the two screwthreaded portions, and which is reduced in size between the two screw-threaded portions, with the perforated thimble D, internally screw-threaded at each of its ends, so as to screw on the axle, and the nut G and screw B, an oil-passage F made through the axle and to connect with the oil-chamber formed by the thimble, substantially as shown.

2. The combination of the axle having the central portion of the spindle uniformly re duced in size and provided with an oil-passage F, which extends from beyond the shoulder S at its outer end, with the perforated EDVARD S. OOYLE.

WVitnesses:

B. S. CowLEs, C. O, FINLEY. 

